all: update to latest staticcheck
all: update to latest staticcheck

The staticcheck version being used (2020.1.4) can no longer
work with latest Go, spitting out errors like this one:

> could not load export data: cannot import
> "unicode" (unknown iexport format version 2), export data is newer
> version - update tool (compile)

Update to latest version, 2022.1.2, to fix this.

Change-Id: I745482561a46baebc70931443008b95bec2fa377
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/406842
Reviewed-by: Damien Neil <7e091e9a80da888fcd7836fd3c6b7b85f4677c12@google.com>
Reviewed-by: Joseph Tsai <ad9e03fbec35106ba742f446a098eef3d5e31d20@digital-static.net>
Reviewed-by: Lasse Folger <c1a9282e9a97d9bcfa578c9e6643dbf90dcebfeb@google.com>

protocolbuffers/protobuf-go,protocolbuffers/protobuf-go